<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>fr单位</title>
<style>
.grid-container {
	display: grid;
	/* grid-template-columns: 1fr 1fr 1fr 1fr; */
	grid-template-columns: 1fr 1fr 1fr;
	grid-gap: 10px;
	background-color: #2196F3;
	padding: 10px;
}

.grid-container > div {
	background-color: rgba(255, 255, 255, 0.8);
	text-align: center;
	padding: 20px 0;
	font-size: 30px;
}
</style>
</head>
<body>

<h1>fr 单位</h1>

<div class="grid-container">
	<div class="item1">1</div>
	<div class="item2">2</div>
	<div class="item3">3</div>
	<div class="item4">4</div>
	<div class="item5">5</div>
	<div class="item6">6</div>
	<div class="item7">7</div>
	<div class="item8">8</div>
</div>

</body>
</html>